[INFO] cloning repository https://github.com/loserMcloser/wlgreet-smallbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loserMcloser/wlgreet-smallbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FloserMcloser%2Fwlgreet-smallbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FloserMcloser%2Fwlgreet-smallbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49c5ecde0e9b32ca8cfd60a1fa998df30fb30bc0
[INFO] checking loserMcloser/wlgreet-smallbox against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FloserMcloser%2Fwlgreet-smallbox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/loserMcloser/wlgreet-smallbox
[INFO] finished tweaking git repo https://github.com/loserMcloser/wlgreet-smallbox
[INFO] tweaked toml for git repo https://github.com/loserMcloser/wlgreet-smallbox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/loserMcloser/wlgreet-smallbox on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/loserMcloser/wlgreet-smallbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66e93416f55450ebaf0cf3e47ba7e3d2d1729482e8b7364e3e0aa7e5bb455a40
[INFO] running `Command { std: "docker" "start" "-a" "66e93416f55450ebaf0cf3e47ba7e3d2d1729482e8b7364e3e0aa7e5bb455a40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66e93416f55450ebaf0cf3e47ba7e3d2d1729482e8b7364e3e0aa7e5bb455a40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e93416f55450ebaf0cf3e47ba7e3d2d1729482e8b7364e3e0aa7e5bb455a40", kill_on_drop: false }`
[INFO] [stdout] 66e93416f55450ebaf0cf3e47ba7e3d2d1729482e8b7364e3e0aa7e5bb455a40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8fb3b73ab1d233458a1c2a6329742198664b61e3def793eb977cefb046b14d4
[INFO] running `Command { std: "docker" "start" "-a" "d8fb3b73ab1d233458a1c2a6329742198664b61e3def793eb977cefb046b14d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling xml-rs v0.8.20
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking libloading v0.8.3
[INFO] [stderr]    Compiling serde v1.0.198
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.4
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking xcursor v0.3.5
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking os_pipe v1.1.5
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking calloop v0.9.3
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]    Compiling serde_derive v1.0.198
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking greetd_ipc v0.10.0
[INFO] [stderr]     Checking wlgreet v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static `ROBOTO_REGULAR_FONT_DATA` is never used
[INFO] [stdout]   --> src/draw.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub static ROBOTO_REGULAR_FONT_DATA: &'static [u8] = include_bytes!("../fonts/Roboto-Regular.ttf");
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]   --> src/widget.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct DrawContext<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub time: &'a DateTime<Local>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Scrambler` is never used
[INFO] [stdout]   --> src/widgets/login.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Scrambler {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/buffer.rs:12:65
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(buf: &'a mut MmapMut, dimensions: (u32, u32)) -> Buffer {
[INFO] [stdout]    |                      -- the lifetime is named here              ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(buf: &'a mut MmapMut, dimensions: (u32, u32)) -> Buffer<'a> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/buffer.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         &mut self,
[INFO] [stdout]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 73 |         subdimensions: (u32, u32, u32, u32),
[INFO] [stdout] 74 |     ) -> Result<Buffer, ::std::io::Error> {
[INFO] [stdout]    |                 ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 74 |     ) -> Result<Buffer<'_>, ::std::io::Error> {
[INFO] [stdout]    |                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer.rs:100:19
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn offset(&mut self, offset: (u32, u32)) -> Result<Buffer, ::std::io::Error> {
[INFO] [stdout]     |                   ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn offset(&mut self, offset: (u32, u32)) -> Result<Buffer<'_>, ::std::io::Error> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/config.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     config.command = matches.opt_get_default("command", config.command).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wlgreet` (bin "wlgreet") due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: static `ROBOTO_REGULAR_FONT_DATA` is never used
[INFO] [stdout]   --> src/draw.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub static ROBOTO_REGULAR_FONT_DATA: &'static [u8] = include_bytes!("../fonts/Roboto-Regular.ttf");
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]   --> src/widget.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct DrawContext<'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub time: &'a DateTime<Local>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Scrambler` is never used
[INFO] [stdout]   --> src/widgets/login.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Scrambler {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/buffer.rs:12:65
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(buf: &'a mut MmapMut, dimensions: (u32, u32)) -> Buffer {
[INFO] [stdout]    |                      -- the lifetime is named here              ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(buf: &'a mut MmapMut, dimensions: (u32, u32)) -> Buffer<'a> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/buffer.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         &mut self,
[INFO] [stdout]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 73 |         subdimensions: (u32, u32, u32, u32),
[INFO] [stdout] 74 |     ) -> Result<Buffer, ::std::io::Error> {
[INFO] [stdout]    |                 ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 74 |     ) -> Result<Buffer<'_>, ::std::io::Error> {
[INFO] [stdout]    |                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer.rs:100:19
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn offset(&mut self, offset: (u32, u32)) -> Result<Buffer, ::std::io::Error> {
[INFO] [stdout]     |                   ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn offset(&mut self, offset: (u32, u32)) -> Result<Buffer<'_>, ::std::io::Error> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/config.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     config.command = matches.opt_get_default("command", config.command).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wlgreet` (bin "wlgreet" test) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d8fb3b73ab1d233458a1c2a6329742198664b61e3def793eb977cefb046b14d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8fb3b73ab1d233458a1c2a6329742198664b61e3def793eb977cefb046b14d4", kill_on_drop: false }`
[INFO] [stdout] d8fb3b73ab1d233458a1c2a6329742198664b61e3def793eb977cefb046b14d4
